U said it urself it is a generalization of some manhuas that u've read thus far ^^
U can't possibly have read all manhuas out there, so I wouldn't say they are entirely bad anyways.
I guess u simply have to continue looking for more until u find something that u like (even tho I don't really read much manhuas myself, since I never specifically search for manga/manhua/manwha in general)
this one was good but kinda predictable:
http://www.mangago.zone/read-manga/ayeshah_s_secret/
As you said it's the ones you have read ^^
Many of them are really good and no so much cliché and cringy. Concerning the dialogues, it's sometimes a matter of ''bad'' translation. Here are few I really like. Enjoy !
https://m.webtoons.com/en/thriller/bastard/list?title_no=485
http://www.mangago.zone/read-manga/blood_bank/?av=1
http://www.mangago.zone/read-manga/live_or_not/?av=1
http://www.mangago.zone/read-manga/here_u_are/
http://www.mangago.zone/read-manga/save_me/
http://www.mangago.zone/read-manga/daughter_of_the_emperor/?av=1
https://m.webtoons.com/en/drama/lookism/list?title_no=1049
Ah well, those are actually manhwas, not manhuas, I actually know almost all of them and reading them with pleasure, I actually like manhwas more than mangas as well. What I meant was manhuas, the Chinese ones. But thanks for recommendation anyway, I haven't checked Save Me out, I will check it (=・ω・=)
Am I the only one who thinks manhuas are hard to read and hard to understand? I mean, characters' dialogues just doesn't make any sense sometimes. Also there are too many cringy main characters in the many of them like they are alway 'I was trash but not this time, hyaaaa!!!!' (this was a generalization about the manhuas I have read so far, so don't take it offensively please) Well, there's a possibility that I might be the unlucky one whom just bump into the bad manhuas as well, so I would really like you guys to recommend me some good ones with clever main characters... (For genre, it can be anything as long as it's a good read.)